import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  {path:'/home',component:Home}
]

const router = new VueRouter({
  routes
})
//挂载路由导航守卫
router.beforeEach((to,from,next)=>{
  //to 跳转路径
  //form 代表从那个路径跳转而来
  //next 是放行函数 next() next('/login')
  if(to.path === '/login') return next()
  //过去token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})
export default router
